EP2267178A2 - Procédé destiné à rendre rugueuses des surfaces métalliques - Google Patents

Procédé destiné à rendre rugueuses des surfaces métalliques Download PDF

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Publication number
EP2267178A2
EP2267178A2 EP10167055A EP10167055A EP2267178A2 EP 2267178 A2 EP2267178 A2 EP 2267178A2 EP 10167055 A EP10167055 A EP 10167055A EP 10167055 A EP10167055 A EP 10167055A EP 2267178 A2 EP2267178 A2 EP 2267178A2
Authority
EP
European Patent Office
Prior art keywords
grooves
nutenstege
tool
undercuts
plastic deformations
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10167055A
Other languages
German (de)
English (en)
Other versions
EP2267178B1 (fr
EP2267178A3 (fr
Inventor
Thomas Dr. Dörfler
Clemens Maria Verpoort
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Publication of EP2267178A2 publication Critical patent/EP2267178A2/fr
Publication of EP2267178A3 publication Critical patent/EP2267178A3/fr
Application granted granted Critical
Publication of EP2267178B1 publication Critical patent/EP2267178B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/20—Other cylinders characterised by constructional features providing for lubrication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material
    • Y10T29/49996—Successive distinct removal operations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12292—Workpiece with longitudinal passageway or stopweld material [e.g., for tubular stock, etc.]

Definitions

  • the invention relates to a method for roughening metal surfaces to improve the adhesion of layers thermally sprayed thereon according to the preamble of claim 1.
  • a method for roughening metal surfaces for adhesion improvement of thermally sprayed thereon layers is known in which in a first process step uniform grooves, for. B. rectangular or trapezoidal, are introduced into the metal surface.
  • the Nutenstege be plastically deformed to form undercuts along the Nutenstege.
  • the disadvantage is that the Nutenstege be plastically deformed over its entire length. This requires a relatively high force, wherein the shape of the undercuts is difficult to achieve constant.
  • the formation of the undercuts over the entire length of the grooves ensures complete filling of the grooves by the spray material only to a limited extent since the adjacent undercuts form a constriction through which the spray material can only incompletely penetrate into a groove.
  • the object of the invention is therefore to improve the known methods for roughening so that the plastic deformation of the Nutenstege can be done to form the undercuts with little effort, a uniform formation of undercuts is still possible and the undercuts are designed so that a possible complete filling of the grooves with spray material is ensured.
  • the degree of plastic deformation of the Nutenstege in the longitudinal direction of the grooves changes regularly, can be specifically introduced in regular sections, the undercuts in the Nutenstege. These are the Nutenstege by appropriate tools each locally deformed so that these undercuts arise. Seen in the longitudinal direction of the grooves, this leads to a constant, but regular change in the shape of the undercuts. The undercuts sometimes can not even occur because in places the degree of plastic deformation is low or no plastic deformation is present.
  • the then regularly occurring undercuts can be introduced with relatively little effort in the Nutenstege, since overall only a small plastic deformation of the Nutenstege is required. Furthermore, the undercuts can be introduced with great accuracy. This results in these regularly along the grooves with the same dimensions. This is for a uniform adhesion of the later sprayed layer of great advantage. It is also advantageous that the applied spray material can very well fill up the grooves, as they regularly have no or at least smaller undercuts. In these areas, the spray material penetrates very well into each groove and can then easily fill the directly adjacent groove areas with the undercuts.
  • the plastic deformations are knurls on the upper side of the Nutenstege. This is done with a known knurling tool along the groove. This results, depending on the shape of the knurling tool, the uniform plastic deformations corresponding to the groove shape of the knurling tool.
  • the plastic deformations are local indentations on the upper side of the Nutenstege. This may be introduced by a roller having corresponding protrusions, tips or needles.
  • the undercuts are generated by the groove on the top is pressed so strong that the groove is plastically pressed and then the groove flanks plastically to the side - transverse to the groove longitudinal direction - deform.
  • the plastic deformations are local Amsterdammmungen in the Nutenstegen transversely to the direction of the groove. This can be done by running a roller in the groove, which has regular projections, tips or shoulders on the radial circumference, which cause a deformation of the groove transversely to the groove longitudinal direction. The groove is then plastically bent transversely to its longitudinal direction. Since Nutenfußge remain undeformed in the Nutenfuß, the Nutenstege are deformed with increasing height more in the transverse direction, quasi inclined, whereby the undercuts formed in the grooves.
  • the plastic deformations can be local indentations of the Nutenstegkanten. This can be accomplished by the Nutenstegkanten be pressed or squeezed at regular intervals accordingly, causing the undercuts on the groove edges.
  • a tool for introducing the plastic deformations may have at least one punch.
  • this stamp is cyclically movable.
  • the moving punch When the tool is guided over the grooves, the moving punch generates the corresponding plastic deformations of the Nutenstege.
  • the punch may have a correspondingly shaped punch head and the punch may engage the grooves in any suitable direction to produce the optimum shape of undercuts on the Nutenstegen.
  • the punch can act directly perpendicular to the top of the Nutenstege, whereby the Nutenstege be pressed from above and thereby the Nutenstegmaterial flows in the transverse direction.
  • the punch can also act in the transverse direction to the grooves at a shallow angle, whereby the Nutenstege be deformed transversely to its longitudinal direction.
  • a tool for introducing the plastic deformations is guided in a groove.
  • the tool can always be aligned exactly to the Nutenstegen and edited only one of the adjacent Nutenstege.
  • the deformation of the Nutenstege is always relative to the groove and can thus be done with high accuracy and repeatability.
  • the plastic deformations of the second method step are introduced in the same operation as the first method step.
  • a tool for plastic deformation can subsequently be arranged.
  • First and second process steps are carried out quasi simultaneously or in quick succession. In addition to the time savings - there is no further operation necessary - also reduces the measurement or setup effort for the second step. Both tools are directly coupled to each other and need only be aligned once.
  • plastic indentations can alternate from above with indentations in the transverse direction and / or deformations of the groove flanks.
  • a tool can introduce different and / or a mixture or superposition of said plastic deformations. It is also possible to combine a plurality of tools for carrying out the second method step in a suitable manner in order to produce the most favorable undercuts possible.
  • This method is particularly suitable for processing and preparing the coating of cylinder blocks of internal combustion engines.
  • the method is well applicable because with little effort reliably very evenly the necessary undercuts can be introduced into the Nutenstege.
  • FIGS. 1 to 3 an arrangement for carrying out the inventive method is shown, wherein FIG. 1 the cut through the workpiece and FIG. 2 the top view shows.
  • FIG. 3 shows the enlarged section A from FIG. 1 .
  • the workpiece, a cylinder block 1 has a metal surface 2, which is prepared by means of the method in order to be able to apply a sprayed layer.
  • a tool spindle 4 On a tool spindle 4, a tool holder 5 is fixed, which carries a turning tool 6.
  • the tool spindle 4 rotates and slowly moves down into the cylinder bore 3, the turning tool 6 generates in the metal surface 2, the circumferentially extending grooves 7 with the Nutenstegen arranged therebetween 8th
  • a rotatable knurling roller 9 which acts on the Nutenstege 8 by regular projections 10 are arranged on the circumference, which rotates when the rotary spindle 4, at regular intervals, the Nutenstege 8 plastic in the form of knurls or knurls 11th deform. These grooves 11 in turn generate on the groove flanks 12 of the Nutenstege 8, the undercuts 13th
  • the knurling roller 9 is set back axially relative to the turning tool 6, as seen in the axial direction of movement of the rotating spindle, whereby the knurling roller 9 always interacts with a groove web 8 that has just been formed.
  • Fig. 4a to 4d are cuts through differently shaped Nutenstege and in the Fig. 5a to 5d the corresponding perspective views shown.
  • FIGS. 4a, 5a shows the plastic deformation of a Nutensteges 8a, are introduced into the regular central indentations 14 on its upper side 15.
  • the indentations 14 lead to plastic deformations, whereby the regular undercuts 13 are formed on the groove flanks 12.
  • Regularly means here that the indentations or undercuts seen in the longitudinal direction of the grooves, always occur at about the same distance.
  • FIGS. 4d, 5d are the plastic deformations of the Nutenstegs 8d itself shown by this is bent in the transverse direction to the groove longitudinal direction regularly and alternately in one direction and the other to the side. As a result, the undercuts 13 on the groove flanks 12 alternately form - seen in the groove longitudinal direction.
  • a roller 9a can be introduced with the indentations 14 in the top 15 of a Nutensteges 8.
  • the roller 9a is in FIG. 6a cut in its middle plane.
  • FIG. 6b shows the section AA FIG. 6a .
  • cone tips 17 are formed at regular intervals.
  • the roller 9a rolls on the upper side 15 of a Nutensteges 8a in the groove direction the indentations 14 form as plastic deformations in the Nutensteg 8a and form the already in FIG. 3a and 4a
  • the roller 9a is guided on the Nutensteg 8a via two laterally arranged on the roller 9a, radially projecting pulleys 18a.
  • the roller 9a centered by itself on the center of the Nutensteges 8a and it is ensured that the indentations 14 always take place exactly in the middle of the upper side 15. So that the guide disks 18a do not jam with the plastically deformed Nutensteg 8 in the region of the indentations 14, the guide disks 18a are recessed radially and axially in the region of the conical tips 17.
  • FIGS. 7a and 7b a roller 9c is shown, with the Nutstegkanten 16 are plastically deformed.
  • the roller 9c is cut in its center plane in FIG. 7c.
  • FIG. 7b shows the section BB Figure 7a ,
  • the roller 9c is guided on the Nutensteg 8c via two laterally arranged on the roller 9c, radially projecting pulleys 18c.
  • triangular paragraphs 19 are formed on the circumference at regular intervals. It makes sense that the guide discs 18c and roller 9c are made in one piece, so that the heels receive a higher strength.
  • FIG. 8a a roller 9d is shown in side view, with which the Nutenstege 8d can be plastically deformed in the transverse direction.
  • FIG. 8b is the section AA, in Figure 8c of the section BB FIG. 8a shown.
  • the roller 9d has a central guide disk 18d integrated into the roller 9d, which is guided in a groove 7 '. At regular intervals, the guide disc 18d on conical projections 20 which begin at the outer periphery, so there are not yet available, and then to the axis of rotation of the roller 9d - radially inwardly - increase.
  • the conical projections 20 lead to a regular plastic deformation of the groove webs 8d in such a way that they are bent to the side in the region of the projections 20, whereby the undercuts 13 arise.
  • FIG. 9a the section through a punch tool 22 for the plastic deformation of (not shown) Nutstegkanten 16 is shown.
  • a punch 23 is resiliently mounted in the punch tool 22 and extends periodically when the punch tool 22 moves along a Nutensteges 8.
  • the punch movement can be generated by any suitable actuator, or mechanically by cams, the z. B. are arranged on the rotary spindle.
  • the stamp head 24 has the negative mold for the plastic deformation, which is to apply the stamp on the Nutenstegkanten 16.
  • FIG. 9b shows the front view of the stamp head 24th
  • FIG. 10a the section through a punch tool 22 'for the plastic transverse deformation of a Nutsteges 8 is shown.
  • Two punches 23a and 23b are resiliently mounted in the punch tool 22 'and rotate alternately periodically when the punch tool 22 moves along the Nutensteges 8.
  • the punches 23 a, b are arranged inclined in the transverse direction to the grooves 7, so that the punch heads 24 a, b at least partially retract into the groove 7 in order to meet the Nutensteg 8.
  • the punch movement can also be generated here by any suitable actuator or mechanically.
  • the top view of the punch tool 22 'in FIG. 10b shows the extended punch 23a, which deforms the Nutensteg 8 upwards.
  • FIG. 10c shows - the punch tool 22 'has meanwhile continued along the Nutensteges 8 - the deformation of the Nutensteges 8 down through the punch 23b.
  • a twin roller tool 25 has the two skew rollers 26a, 26b.
  • the two skew rollers are arranged on both sides of the Nutensteges to be deformed 8. They are inclined to each other and engage with their wavy circumferential profile 27 into each other, wherein between the inclined rollers 26a, 26b of the Nutensteg to be deformed 8 is arranged. If the twin-roller tool 25 moves along the Nutensteges 8 and rotate the inclined rollers 26a, 26b, then the Nutensteg 8 alternately bent up and down, as seen from the top views in the FIGS. 11b and 11c seen.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP10167055.2A 2009-06-25 2010-06-23 Procédé destiné à rendre rugueuses des surfaces métalliques Not-in-force EP2267178B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009027200A DE102009027200B3 (de) 2009-06-25 2009-06-25 Verfahren zum Aufrauhen von Metalloberflächen, Verwendung des Verfahrens und Werkstück

Publications (3)

Publication Number Publication Date
EP2267178A2 true EP2267178A2 (fr) 2010-12-29
EP2267178A3 EP2267178A3 (fr) 2011-11-23
EP2267178B1 EP2267178B1 (fr) 2013-10-23

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US (1) US8707541B2 (fr)
EP (1) EP2267178B1 (fr)
JP (1) JP5916987B2 (fr)
CN (1) CN101928908B (fr)
DE (1) DE102009027200B3 (fr)

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EP2679324A2 (fr) 2012-06-27 2014-01-01 Gehring Technologies GmbH Outils et procédé permettant de rendre mécaniquement un objet rugueux
WO2015024628A1 (fr) * 2013-08-21 2015-02-26 Bayerische Motoren Werke Aktiengesellschaft Procédé de revêtement d'une paroi de cylindre d'un moteur à combustion interne
WO2015032461A1 (fr) * 2013-09-05 2015-03-12 Bayerische Motoren Werke Aktiengesellschaft Procédé permettant d'usiner une paroi de cylindre d'un moteur à combustion interne
WO2015086113A1 (fr) * 2013-12-11 2015-06-18 Daimler Ag Élément hybride et son procédé de production
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DE102016223772A1 (de) 2016-11-30 2018-05-30 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Bearbeiten einer Zylinderwand und Zylinderkurbelgehäuse mit bearbeiteter Zylinderwand
CN110325307B (zh) 2017-02-21 2021-03-26 福特汽车公司 由具有可平移模锻刀片的刀具进行机械粗糙化
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US10214803B2 (en) 2013-09-05 2019-02-26 Bayérische Motoren Werke Aktiengesellschaft Method for machining a cylinder wall of an internal combustion engine
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WO2017102608A1 (fr) 2015-12-18 2017-06-22 Mag Ias Gmbh Procédé et outil pour rendre rugueuse une paroi d'alésage de cylindre à revêtir et élément de guidage d'un piston de cylindre
DE102015226062A1 (de) 2015-12-18 2017-06-22 Mag Ias Gmbh Verfahren und Werkzeug zum Aufrauen einer zu beschichtenden Zylinderbohrungswandung sowie Bauteil zum Führen eines Zylinderkolbens
US11331763B2 (en) 2015-12-18 2022-05-17 Mag Ias Gmbh Method and tool for roughening a cylinder bore wall to be coated, and component for guiding a cylinder piston

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EP2267178B1 (fr) 2013-10-23
US20100326270A1 (en) 2010-12-30
JP5916987B2 (ja) 2016-05-11
DE102009027200B3 (de) 2011-04-07
CN101928908B (zh) 2014-07-16
JP2011005549A (ja) 2011-01-13
EP2267178A3 (fr) 2011-11-23
US8707541B2 (en) 2014-04-29
CN101928908A (zh) 2010-12-29

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